$OpenBSD: patch-include_driver_Platform_unix_h,v 1.1.1.1 2016/02/01 18:57:59 feinerer Exp $
--- include/driver/Platform_unix.h.orig	Wed Dec 30 14:56:29 2015
+++ include/driver/Platform_unix.h	Wed Dec 30 14:57:47 2015
@@ -39,7 +39,7 @@
 #include <ctype.h>
 #include <string.h>
 
-#ifndef OS_DARWIN
+#if !defined(OS_DARWIN) && !defined(OS_OPENBSD)
 # include <malloc.h>
 #endif
 
